JPH0644227Y2 - Vibration sensor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a sensation vibration generating apparatus that enables the user to listen to music as a sensation in addition to the conventional audible listening.

(Prior Art) Music is listened to through a speaker or headphones except when a live performance is listened to. In this case, the viewer only tastes the music by hearing, and cannot perceive it sensibly. Therefore, the present applicant company has developed a sensory sound device that vibrates a human body placing object such as a chair or bed in response to a low-frequency signal in a music component for the purpose of not only hearing but also listening. Developed by and has been well received. In this body acoustic device, a transducer that receives low-frequency current and generates mechanical vibration is attached to a human body placing object such as a chair or a bed, and the outside thereof is covered with a cloth or the like.

(Problems to be solved by the invention) A conventional sensational sound device having such a structure is heard by a speaker placed near a human body placing object such as a chair or a bed or headphones connected to a terminal provided on the human body placing object. The visual appreciation is performed, and at the same time, the physical appreciation is performed. In this case, the person who feels and appreciates must use a dedicated human body placing object. However, in a general home or a room with a small area, it may not be possible to prepare a sensational acoustic device, and in this case, it is inevitable to listen to music only by hearing. The present invention has been made in view of this point, and an object of the present invention is to provide a sensible vibration generating apparatus that allows the sensible vibration to be tasted very easily in a general household or a room having a small area.

(Means for Solving Problems) As a means for solving the above problems, the present invention fixes a coil in the central portion of the upper surface of the bottom plate with its axis perpendicular to the plane and closes the coil. Of the transducer that generates vibration by receiving low frequency current, which is formed by connecting yokes in series,
On the lower surface of the bottom plate, attach a number of suction cups facing downward,
It is characterized in that it is placed on the floor or the like.

(Operation) With this configuration, for example, this sensation vibration generator is attached to a floor surface in a home by a large number of suction cups, and low-frequency current divided from the output component of the acoustic device is passed to generate vibration. Further, since vibration is transmitted to the floor surface via the suction cup, high frequency sounds are attenuated. In addition, it can be installed anywhere, and the horizontal vibration transmission range of the floor surface at home is usually small, so if you sit around the installation and listen to music with speakers or headphones without disturbing the surrounding vibration, the same timing You can enjoy low frequency vibration with.

(Embodiment) Next, an embodiment of the present invention will be described with reference to FIG.
1 is a transducer. This transducer 1
Is a circular shape including the cover 2 and a bottom plate 3 that covers the bottom of the cover 2. The cover 2 and the bottom plate 3 are connected at a plurality of places with bolts 4 and nuts 5. An air-core coil 6 is attached to the center of the bottom plate 3 with its lower end bonded. The coil 6 is connected to a cord 7 drawn out of the cover 2. The cord 7 is connected to the output side of the audio device through a filter that passes below 150 Hz.

The inner circumference of the top plate 9 supported by the ring spring 8 faces the outer circumference of the coil 6, and the inner circumference of a yoke 11 having a T-shaped cross section supported on the upper surface of the top plate 9 via a magnet 10. The central part is facing. 12 is a buffer plate. As shown in the figure, a large number of suction cups 13, 13, ... That face downward are attached to the lower surface of the bottom plate 3 and are adsorbed on the floor 14. To attach the suction cup 13 in this way,
2 is a plate-like body 15 made of rubber or resin as shown in FIG.
Is formed on one surface of the plate-shaped body 15 and the other surface (the upper surface in the drawing) of the plate-shaped body 15 is coated with an adhesive to bond the plate-shaped body 15 to each other.
It may be attached to the lower surface of the transducer 1, or as shown in FIG. 3, suction cups 13, 13, ... Are formed on the upper and lower surfaces of the plate-like body 15, and the suction cups 13, 13 ,. The shape 15 may be attached to the lower surface of the transducer 1 by suction.

The transducer 1 configured as described above is provided with a suction cup.
Adsorbed on the floor 14 with 13 down, a low-frequency signal suitable for driving the transducer 1 from the output signal of the audio amplifier to the coil 6 through the cord 7, for example, 150 Hz
The following signals are applied (see FIG. 1). This signal is obtained by mixing the left and right stereo channels. In order to obtain a signal of about 150 Hz or less from the output signal of the audio amplifier, the signal processing circuits described in JP-B-61-14238, JP-B-60-29275, JP-B-57-166485 and the like are used. use. When the coil 6 is energized, the transducer 1 uses the same principle as a speaker that produces sound, that is, the magnetic interference action between the magnet 10 and the coil 6,
Vibration will be emitted according to the frequency of the energizing current.

This vibration is transmitted to the floor 14 via the suction cup 13. Since the floor of a general household is made of wood, when the transducer 1 operates, it causes floor vibration. Therefore, by listening to the sound through the transducer 1 while listening to the sound through the speaker or the headphone, it is possible to experience a sense of reality at home that is similar to listening to music at a concert venue. Vibration of transducer 1 is sucker
When transmitted to the floor 14 through the suction cup 13, the suction cup 13 absorbs a proper amount of vibration, and acts so that the floor 14 does not generate noise (so-called chattering noise) due to slight vibration. For this reason sucker 13
Considering the balance with the weight of the vibrating thread consisting of the magnet 10 and the yoke 11, etc., the material that absorbs the appropriate amount of vibration to prevent the generation of sound, and is capable of transmitting sufficient vibration to the floor 14, Shape and size.

In the embodiment described above, the transducer 1 is 1
Although only one is used, a plurality of small transducers can be stacked and implemented in the present invention. In this case, a plurality of transducers 1 and 1 are stacked and coupled by a shaft with a spacer interposed therebetween. The electrical wirings are connected in series, parallel, or series-parallel with their polarities matched. The use of multiple transducers in this manner will improve the ampere turns. Since the suction cups 13 adsorb onto the floor 14, stability is ensured even when they are stacked.

(Effect of the Invention) Since the present invention is configured as described above,
The sensible vibration generator can be fixed by simply pressing it with a suction cup on a continuous floorboard near the body or on the plane of the chair.Since it is a transmission path only for the suction cup, the suction cup has a high-frequency range during vibration transmission. Can be attenuated and chattering noise can be prevented. As described above, when listening to music through the speaker or the headphones, the music can be easily collaborated, and the presence can be easily obtained in a general home.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical sectional view of an embodiment of the present invention, FIG. 2 is a side view of a suction cup portion in FIG. 1, and FIG. 3 is a side view of another example of the suction cup. FIG. 4 is a wiring diagram of that of FIG. 1 ... Transducer 6 ... Coil 10 ... Magnet 11 ... Yoke 13 ... Sucker 14 ... Floor 15 ... Plate

Claims (3)

[Scope of utility model registration request] 1. A transducer for vibrating in response to a low frequency current, wherein a coil is fixed to a central portion of an upper surface of a bottom plate with its axis perpendicular to the plane, and a yoke is continuously provided close to the coil. The sensible vibration generating apparatus, wherein a large number of suction cups are attached to the lower surface of the bottom plate so as to face downward and are placed on the floor or the like. 2. To attach a large number of suction cups to the lower surface of the transducer downward, the suction cups are formed on one surface of the plate-shaped body, and the other surface of the plate-shaped body is attached to the lower surface of the transducer by adhesion. The sensation vibration generator according to claim 1, wherein the utility model is registered. 3. A plurality of suction cups are attached to the lower surface of the transducer in a downward direction, the suction cups are formed on both sides of the plate-like body, and one suction cup is attached to the lower surface of the transducer. The sensation vibration generator according to claim 1 of the utility model registration claim.